Machine for perforating master-sheets for type-writer operators.



L. Rv ROBERTS. MACHINE FOR PERFORATING MASTER SHEETS FOR TYPE WRITER OPERATORS.

l 9 6G, 1 G1 Patented Nov. 9, 1915.

3 SHEETS-SHEET 1.

APPLICATION FILED AUG: 12. 19H.

W I N E S E IN VEN I O R'.

ATTORNEY L. R. ROBERTS.

MACHINE FOR PERFORATING MASTER SHEETS FOR TYPE WRITER OPERATORS.

APPLICATION FILED AUG, :2, 1911.

1 60, 1 01 Patented Nov. 9, 1915.

3 SHEETS-SHEET 2.

WKTNESSES: w

\ iNVENTOR:

L ATTORNEYW'" I L. R, ROBERTS.

MACHINE FOR PERFORATING MASTER SHEETS FOR TYPE WRITER OPERATORS.

' APPLICATION FILED AUG= 12. 1911. 1,160,101.

Patented Nov. 9, 1915.

3 SHEETS3HEET 3 Q NWI INVENTOR:

ATTOR 5w STATES PATENT OFFICE.

LY MAN R. ROBERTS, OF RUTHERFORD, NEW JERSEY, ASSIGNOR TO UNDERWOOD TYPE, WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

MACHINE FOR PERFORATING MASTER-SHEETS FOR TYPE-WRITER OPERATORS.

Application filed August 12, 1911.

To all whom it may concern Be it known that I, LYMAN R. ROBERTS, a citizen of the United States, residing in Rutherford, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Machines for Perforating Master-Sheets for TypelVriter Operators, of which the following is a specification.

This invention relates to keyboard ma chines for punching master sheets, cards,

etc., for use especially in operating typewriting machines.

A punching machine of this class is illustrated in United States Patent No. 953,180, granted to Roberts and Davis March 29, 1910. In the machine. shown in said patent, the power for operating the punches is supplied by the fingers of the operator.

One object of the present inventionis to provide a machine which will punch very heavy paper or cards, without unduly fatiguing the operator. To this end, I have provided a power device preferably electrical for operating the punches, and have arranged a series of interponents normally in idle position, but each movable by its associated key between its associated punch and said electrical device, so that the latter may operate the selected punch. Each key not only sets an interponent, but also closes a circuit through a magnet, whereby the electrical device is actuated. By this means very light strokes upon the keys are sufficient to punch perforations in very heavy cards, and the operator can work a long time without fatigue. e

In the accompanying drawings, Figure l is a sectional side elevation, showing so much of the machine illustrated in said patent as is sufficient to illustrate the present improvements; the parts being shown in normal positions. Fig. 2 illustrates a key as having set an interponent and nearly completed its stroke; the electrical circuit being not yet closed. Fig. 3 is a view similar to Fig. 2, but showing the key fully depressed and the punch operated. Fig. 4 is a front elevation showing punches,'inter ponents, and a common hammer or actuator for said interponents. Fig. 5 is a perspective diagram of the electrical devices and connections to keys. Fig. 6 is a plan of Specification of Letters Patent. I

Patented Nov. 9, 1915.

Serial No. 643,686.

the keyboard and the lower portion of the machine.

Keys 1, corresponding to the alphabet and numeral keys of a typewriting machine, are arranged upon the front ends of. levers 2,

each fulcrumed between its ends at 3. The

rear ends of the levers underlie a series 'of upstanding interponents 4, the latter guided able rearwardly ..:d forwa'rdly in a guide bracket 10, and having returning springs 11; a perforated bar or matrix 12 being fixed back of the punches, and a space being left between the punches and the matrix for the passage of a sheet 13 of heavy paper or cardboard, which may be suitably supported and fed, as by means of rollers 14. The paper 13 is shown as supplied from a spool 15; but it will be understood that cards may be otherwise fed to the punches.

Upon the depression of any key 1, its rear end is lifted together with the overlying interponent 4, until the latter reaches the position seen at Fig. 2 with its head 16 just in front of the associated punch 9. Further downward movement of the key brings a contact 17 on lever 2 into engagement with a contact 18, thereby closing an electrical circuit through a magnet 19 and attracting an armature 20 provided upon a rock shaft 21, which extends horizontally across the machine, and carries at its ends upright arms 22 rigidly secured thereto and united attheir upper ends by a relatively heavy bar 23, which serves as a hammer head to drive. the interponent head 16 backwardly, together with the selected punch, to punch a hole in the sheet 13, as at Fig. 3; an elbow 24 in the slot 7 permitting this vibration. of the interponcnt 4. Upon the release of the key from pressure, the punch is returned. by

spring 11, and the same spring swings back the interponent. A spring 25 returns the rock shaft 21 together with the hammer head 23 and armature 20; and an individual spring 26 returns the key lever to normal position.

It will be understood that the hammer jjhead 23 in striking swings over or above'the tops of the idle interponents 4. At Fig. 6

he.tween their ends, the converging ,heingprefcrably all forward of the fulcrum it will be seen that the levers 2 converge portions her 3, and that the width of the system of vers and punches is substantially less than 1 he width of the keyboard.

.4 There is one of the contacts 18 for each of the. keys; and these contacts are preferably provided upon the forward ends of yielding fingers 27, which are secured at their rear ends by screws 28 into a block their'forward ends against an insulating magnet 19 may connect two posts 31 and 'contacts. 1.7,, so that the magnet circuit may be closed through 31,33, 34, 35, 17, 18, 27

E32. A conductor 33 may extend from 3l. I to a horizontal main conductor in the form of a bar 34 extending acrossthe machine beneath the keys; and individual conductors '35 may extend from said bar 3-4: to all the v 9 ends, conductor 36 which runs through a source of power 37, the latter being connected by a conductor 38 to the other post 32. A condenser 39 to prevent sparking 1n 2 the making and breaking of contacts may be a uniform sheet or ca d so as to produce lrregularltles which can be ut1-lized,to re,

connected in the manner illustrated, one

conductor 40 being connected by a screw 41 to a plate 42, from which all the spring fingers extend; and the other conductor l3 may be connected to a horizontal transverse" plate 44, the latter having individual connections45 to the contacts 17. These individual connections maybe attached to the key levers by screws' 46 threaded into binding plates 47 carrying the contacts 17, the binding plates being attached to insulating blocks 48 on the key levers, Fig; 5.

It will be seen that the machine may be operated rapidly and with certainty and great ease. The interponents 4 are very light, and afford no appreciable resistance to the touch on the keys.

The universal hammer frame 23, 22,- 21, may have two of the armature arms 20, one at each side of the machine, as at Fig. 5, and the right hand arm may cooperate with a magnet 49, which is connected in parallel circuit with magnet 19 by means of'conductors 50, 51. This insures a quick even blow of the hammer head 23, so as to oper ate the punches in the required manner at all portions of the punch system.

It is'to be understood that certain portions of the invention can be used with other means than the cutting punches. Master sheets may be produced by the power or electrical means provided in a variety of ways, by interrupting, the uniformity of produce a definite sequ e'nce of'actions'.

to positions between sald Variations maybe resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus claim:

1. The combination with keys, of perforating means including a plurality of perdescribed invention, I

forating members corresponding to said keys, actuating means, and interponents corresponding to each of said keys, said-interponents supported on said keys and normally held by gravity in'ineffective position and lifted by said keys into effective position between said actuating means and said perforating means, so that the perfo- 7 rating members corresponding to the keys can be operated by said actuating means when the keys are operated, and power means for driving said actuating means.

2. The combination w th, keys, ofperfovrating means including a plurality of perforating members corresponding to said keys, actuating means, and interponents corresponding to each of said keys, said interponents supported on said keys and normally held by gravity in ineffective position and lifted by said keys into effective position between said actuating means and said.

perforating means, so that the perforating members corresponding to the keys can be operated by said actuating means when the keys are operated, and power means controlled bv said keys for driving said actuat-- ing means.

3. The combination with perforating means, of actuating means for operating said perforating means, a plurality of keys, :1 contact on each of said keys, electrical means for manipulating said actuating means and adapted to be connected to a source of electricity, and contacting means adapted to be engaged by the individual contacts on said keys at the operation of any one of said keys, and connected to said source of electricity and said electrical means, so as to excite said electrical means gaged by the individual contacts on said' keys at the operation of any. one of said keys, and connected to said source of electricity and said electrical means, so as to excite said electrical means on the actuation of any one of said keys, and a series of interponen'ts, one for each of said keys, mov-' able individual] y by the corresponding keys perforating-means and said actuating means.

5, The combination with a series of punches, of a single actuating means for terponents normally held by gravity in in- ..ffective position, and keys to lift said interponents to operative position between said actuating means and said punches, to select individual punches to be operated by said actuating means. I

6. The combination with a series of punches, of a single actuating means for operating' all of said punches; a series of interponents normally held by gravity in ineffective position and movable between said actuating means and said punches to select individual punches to be operated by said actuating means, and a series of keys corresponding to each of said punches and-on which said interponentsare carried and lifted .by the keys from their ineffective positions to their efi'ective positions.

7. The combination with a series of punches, of a single actuating means for operating all of said punches, a series of in- ,t erponents normally held by gravity in ineffective position and movable between said actuating means and said punches .to select individual punches to beoperated by said actuating means, a series of keys corresponding to each of said punches and on which said interponents are carried and lifted by the keys from their inefi'ective positions to their effective positions, and motive means for manipulating said actuating means controlled by said keys.

8. The combination with a plurality of punches, ofa hammer for actuating said punches, a plurality of keys corresponding "to said punches, and a plurality of inter ponents corresponding to said punches and said keys, intervening on the actuation of said keys between said punches and said hammer, whereby said hammer may actuate.

said punches individually, and guiding rods for said interponents, said interpo'nents having slots to allow for play of said interponents relative to said guiding rods.

9. The combination with a plurality of punches, of a hammer for actuating said punches, a plurality of keys corresponding to said punches, and a plurality ofinterponents corresponding to said punches, and said. keysxint'ervening on the actuation of said keys between said punches and said hammer, whereby said hammer may actuate said punches individually, and guiding rods for said intcrponents, said interponcnts having slots to allow for play of said interponents relative to said guiding rods, one of said slots being in the form of an elbow, so as to allow for movement in two directions at angles to each other.

punch normally Withdrawn but not sulficiently to bring it into the path of said hammer, a key lever, and an interponent nor mally'resting on said lever out of the path of said hammer, but arranged to be raised by said lever into the path of said hammer to cause it to operate said punch,'and to fall by, gravity when said key lever isreturned to normal position.

11. In a key-operated punching machine, the combination with an electro-magnet driving a hammer, of a punch, a spring holding said punch'normally withdrawn but not sufficiently to bring it into the path of said hammer, a key lever, an interponent normally resting on said lever out of the path of said hammer, but arranged to be raised by said lever into the path of said hammer to cause it to operate said punch and to fall by gravity when said key lever is, returned to normal position, and an'elect'ric circuit closed by said key to operate said electro-magnet.

12. In a key-operated punching machine, the combination with a single power-driven hammer, of a plurality of punches to be operated thereby but spaced therefrom, a plurality of keys, onefor each punch, and a key-operated .interponent foreach punch arranged to be lifted by the operation'of its key into the path of said hammer so that. said hammer operates the selected punch.

13. In a. key-operated punching machine, the combination with a single power-driven hammer, of a plurality of punches to be operated thereby but spaced therefrom, a key lever for each machine key, and an inter-' ponentfor each punch resting by gravit in ineffective position on its key but raised by the operation of its key into the path of said hammer so that said hammer operates the selected punch.

14. In a punching machine, the combina tion with a single hammer, of an electromagnet for operating it, a plurality of keys, a punch for each key,-an electric circuit closed by each key to cause said magnet to drive said hammer, a lever on which each key is mounted, and an interponent resting by gravity on each lever and arranged by the depression of its key to establish a connection between said hammer and its punch.

15. In a punching-machine, the combination with a matrix, of a series of punches normally withdrawn therefrom, a single hammer for operating said punches, akey for each punch, a lever on which each key is mounted, and an interponent resting by gravity on each key lever arrangedtoestablish a. connection between said hammer and a punch so that said hammer will operate the selected punch.

16. Ina punchingmachine, the combination with a key lever pivoted intermediate its ends, of a key at one side of said pivot, a power operated hammer, a punch for each each key lever arranged to be raised by its.

key, and an interponent resting by gravity on its key lever at the end opposite said key arranged to be raised by its key toefiective position.

17. In a punching machine, the combination with a key lever pivoted intermediate its ends, of a key atone side of said pivot, an electric circuit closed by the depression of each key, a hammer operated by said electric circuit, a punch for each key, and an interponent resting by gravity on its key lever at the end opposite said key arranged to be raised by its key to efi'ective position.

1-8. In a punching machine, the combination with a key lever, of a power operated hammer, a punch tor each key, an interponent for each punch arranged to be operated by its key to cause said hammer to opcrate its punch, and :a fixed guide for each end of said interponent.

19. In a punching machine, the combination with a key lever, of an electric circuit closed'by depression of said key, a hammer operated by said circuit, a punch for each key, an interponent resting by gravity on key to effective position to cause said hammer to operate its punch, .and a fixed guide for each end of said interponent.

20L The combination with 'a series of pundhes, of a hammer for operating all of "said punches, a series of interponents normally held by gravityin ineifective position, 'and keys to lift said interponents to operative position between saidhammer and 1 punches to selectindividual punches to be operated by said hammer, and electromag- 40 combination with a plurality ofpunches, ot' "a hammer for actuating the punches, an

net's controlledby said keys for operating said hammer.

.21. In a sheet-perforating machine, the

cuit' of the magnet or magnets for causing the actuation of the hammer when -any key is operated and its individual interponent moved to operativeposition.

22. In a sheet-perforating machine, the combination with a series of punches, of a series of keys individual to said punches, in-

terponcnts individually supported and operated by said keys, each interponent lifted by its key into operative relation to the corresponding punch when a key is depressed, a

universal hammer operable through the in terponents to drive the punches, and means to actuate said hammer.

In a sheet-perforating machine, the

combination with a series of punches, of. a-

series of keysindividual to said punches, in-

terponents individually supported andopen' ated by said keys, each interponent lifted by its key into operative relation to thecorrespending punch when a key is'depressed, a

universal hammer operable through the interponents to'drive the punches, an electromagnet having an armature connected to said. hammer for actuating said hammer when the'magnet is excited, andindividual circuit-closers carried by the keys and each operable when its key is depressed to establish a circuit for the magnet.

24. The combination with a typewriter keyboard, including alphabetical and numeral keys, of a system of punches, one for each key, a punch-operating hammer, electrical means operable by said keys for actuating said hammer, and interponents shifted by said keys into position between the hammer and the punches;

21), The combination with a. typewriter keyboard, including alphabetical and numeral keys, of levers bearing said keys, a

system of punches, one for .each;key, a punch-operating hammer, electrical means controlled .by said keys for actuating'said hammer, and interponents engaging said levers to be shifted thereby into position between the hammer and the punches.

, LYMAN-R. ROBERTS.

Witnessesf i I 'i I PAUL Zmou,

GLENFIELD S. YO NG. 

